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Update TreeView's TvnEndLabelEdit method to set label to null when no text has changed #13588

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Merged
merged 2 commits into from
Jun 16, 2025
Merged

Update TreeView's TvnEndLabelEdit method to set label to null when no text has changed #13588

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7b8c49f
Update TreeView's TvnEndLabelEdit method to set label to null when no…
LeafShi1 Jun 12, 2025
2d9ba3f
Write out the code (node ​​is not null && newText != node.Text) to im…
LeafShi1 Jun 16, 2025
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6 changes: 1 addition & 5 deletions src/System.Windows.Forms/System/Windows/Forms/Controls/TreeView/TreeView.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -2574,10 +2574,6 @@ private LRESULT TvnBeginLabelEdit(NMTVDISPINFOW nmtvdi)
if (!e.CancelEdit)
{
_editNode = editingNode;
}

if (!e.CancelEdit)
{
_labelEdit = new TreeViewLabelEditNativeWindow(this);
_labelEdit.AssignHandle(PInvokeCore.SendMessage(this, PInvoke.TVM_GETEDITCONTROL));
}
Expand All @@ -2603,7 +2599,7 @@ private LRESULT TvnEndLabelEdit(NMTVDISPINFOW nmtvdi)

TreeNode? node = NodeFromHandle(nmtvdi.item.hItem);
string newText = nmtvdi.item.pszText.ToString();
NodeLabelEditEventArgs e = new(node, newText);
NodeLabelEditEventArgs e = new(node, (node is not null && newText != node.Text) ? newText : null);
OnAfterLabelEdit(e);
if (newText is not null && !e.CancelEdit && node is not null)
{
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